Author Topic: douglas stationary engines  (Read 16595 times)

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Offline the engineer

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douglas stationary engines
« on: 04 Mar 2007 at 08:21 »
hi new member here  i have just  bought two stationary douglas engines i have a liking for flat twins and would like to get these running again  any idea what model these are one ohv the other side valve thanks for any info regards john



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« Last Edit: 05 Mar 2007 at 11:52 by alwyn »

Offline Reg

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Re: douglas stationary engines
« Reply #1 on: 04 Mar 2007 at 19:15 »
Hi The Engineer,

In order to identify your engines can you provide full engine numbers and most importantly their letter prefixes. It is likely the first engine is from a wartime generator and the second possibly 1930's. The letter prefix is usually FT and may take the form for the later engine as FT35/?/???? and the earlier one as 1Ft ???, 2FT???, 3Ft??? etc

Reg

Offline the engineer

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Re: douglas stationary engines
« Reply #2 on: 05 Mar 2007 at 05:10 »
thanks will get the info and post again :)

Offline the engineer

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Re: douglas stationary engines
« Reply #3 on: 05 Mar 2007 at 05:43 »
hi the side valve engine is  an fft5094 the first f is quite faint just beside the case join but is definately anf  and the ohv is anft35/3/1773
i am a dumbo i just realised that the third photo was still the side valve :oops: .thanksfor the reply



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« Last Edit: 05 Mar 2007 at 11:17 by alwyn »

Offline Reg

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Re: douglas stationary engines
« Reply #4 on: 05 Mar 2007 at 19:27 »
Hi The Engineer,

With regard the two Douglas engines I can confirm the OHV engine is of the type deveoped during WW2 and used to power a 1200VA/350 Watt Generating Set. It is of 350cc capacity and formed the basis of the first post war Douglas production motorcycle the T35.
The second engine was used to power a Douglas Industrial Truck. The engine number and letter prefix which although looking like FFT should probably read just FT. The actual number of 5094 would denote a power unit from the Series 10 models of trucks. There were 5 models in the series namely:-
Low Loading Non-elavating
   "         "      Elavating Platform
High Loading Non-Elavating
   "         "      Elavating Platform
The High Lift
I have no information regarding year of manufacture.
The engine is of 600cc having side by side valves mounted in the cylinder barrels which have detachable light alloy cylinder heads.
The crankshaft speed was governed to 2,800rpm. The steering of these trucks provided by large diameter wheel, operated from the drivers seat, via reduction gear to front wheel which is vertically revolved through a circle of 360 degrees, providing both forward and reverse drive. The truck's speed was governed to 7 mph. I would suggest any spare parts for the earlier engines would have to be accessed through Stationary Engine clubs. Hope this is of some help.

Reg

Offline the engineer

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Re: douglas stationary engines
« Reply #5 on: 06 Mar 2007 at 05:39 »
thanks for the help much appreciated

Offline the engineer

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Re: douglas stationary engines
« Reply #6 on: 26 Aug 2007 at 08:10 »
thanks for the help much appreciated
both engines now running with help from a member in australia (gov parts) many thanks to all  who helped with the tech info also
a great site thanks again hope to complete them soon



« Last Edit: 26 Aug 2007 at 08:51 by Dave »

Offline rpf94

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gmt380